%0 Journal Article %A Daniel Dalcin %A Scott A. Halperin %T Tdap vaccination in pregnancy %D 2021 %R 10.1503/cmaj.202420 %J Canadian Medical Association Journal %P E911-E911 %V 193 %N 24 %U https://www.cmaj.ca/content/cmaj/193/24/E911.full.pdf